FLIGHT MANUAL
DYNALI HELICOPTER COMPANY
Edition N°3
DYNALI H2S January 2012
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53
METHOD FOR DETERMINING THE EMPTY C.G.
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Roll the H2S onto a round bar under the skids
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The bar must be placed perpendicularly to the longitudinal axis
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Hold the helicopter with the mast vertical, in balance on the bar.
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A spirit level is placed on the receiving pulley, this being perpendicular to the mast.
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The virtual junction of the axis of the mast and the skids is 190mm forward of the axis of
the attachment of the rear wheel.
=> measure the distance between the bar and the axle of the rear wheels (Normally 75 mm).
A simple subtraction will permit the determination of the C.G. point: 190 mm – 75 mm = 115
mm = basis for the calculation.